The normal range for the alanine aminotransferase, or ALT, enzyme which is liver specific is 10-100 U/L, according to the Canine Liver Disease Foundation. Elevated ALT enzymes are usually due to cell damage caused by lea... More »

High liver enzymes in dogs may be a sign of serious liver toxicity, according to PetMD. If left without treatment, liver toxicity in dogs can cause health issues. More »

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Liver enzymes are proteins that speed up chemical reactions and processes in the liver. According to MedicineNet, the most common liver enzymes are aspartate aminotransferase, alanine aminotransferase, alkaline phosphata... More »

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Alanine aminotransferase, or ALT, is an enzyme found concentrated in the liver and in small amounts in the kidneys and the heart, states WebMD. An ALT test checks the blood for this enzyme, as its presence indicates pote... More »

The ALT test checks the level of alanine aminotransferase in the blood to see if the liver is healthy. Elevated levels of the enzyme could indicate damage caused by trauma or a disease process, such as cirrhosis or a str... More »

The normal range for an alanine aminotransferase, or ALT, test is 10 to 40 units per liter for men. For women, the normal range is between 7 and 35 units per liter, says WebMD. More »

An SGPT, or ALT, blood test measures the amount of alanine transaminase in the blood, which is a plentiful enzyme in the liver, explains MedlinePlus. Because liver injury releases this enzyme into the blood, an SGPT test... More »